General Dynamics Information Technology Inc., Falls Church, Virginia, is awarded a $16,003,611 indefinite-delivery/indefinite-quantity contract (N6523623D1004) with provisions for firm-fixed-price and cost orders. The contract will provide Electromagnetic Environmental Effects, test, evaluation, and range services in support of command, control, communications, computers, intelligence, surveillance, and reconnaissance systems. The contract includes a five-year ordering period. Fiscal 2023 operation and maintenance (Navy) funds and working capital (Navy) funds in the amount of $2,023,869 will be obligated at time of award. Operation and maintenance funds will expire at the end of the current fiscal year and working capital funds will not expire at the end of the current fiscal year. Work will be performed in Charleston, South Carolina (70%); Norfolk, Virginia (25%); and Bedford, New Hampshire (5%), and is expected to be completed by February 2028. This requirement was not competitively procured because it is a sole source acquisition negotiated under 10 U.S. Code 3201(a)(1) — only one responsible source and no other services will satisfy agency requirements (Defense Federal Acquisition Regulation 6.302-1). Naval Information Warfare Center Atlantic, Charleston, South Carolina, is the contracting activity.